# Practice Quiz in Wire and Wireless Communications System Part 21

Online Practice Quiz in Wire and Wireless Communications System part 21 as one of the Communications Engineering topic.

This is the Online Practice Quiz in Wire and Wireless Communications System Part 21 as one of the Communications Engineering topic. In Preparation for the ECE Board Exam make sure to expose yourself and familiarize in each and every questions compiled here taken from various sources including but not limited to past Board Examination Questions in Electronic System and Technologies, Communications Books, Journals and other Communications References.

### Continue Part XXI of the Online Practice Quiz

#### Quiz in Wire and Wireless Communications System

Question 201. It is a 34-bit binary code that represents the 10-digit telephone number

A. electronic serial number

B. system identification

C. digital color code

D. mobile identification number

Question 202. A wireless data communication service, standard or technology in which data packets are transmitted

A. EDGE

B. GPRS

C. CDMAOne

D. IS-136

Question 203. A province in the Philippines has an area of 2000 sq km. it has to be covered by cellular mobile telephone service using cells with a radius of 2 km. assuming hexagonal cells, find the number of cell sites needed.

A. 154

B. 144

C. 145

D. 132

Question 204. Cellular radios use FM with a maximum deviation of plus or minus _____.

A. 12 kHz

B. 20 kHz

C. 15 kHz

D. 30 kHz

Question 205. It is a spread spectrum technology that relies on time-division duplexing

A. IS-661

B. IS-136

C. PCS 1900

D. PDC

Question 206. Macrocells have base stations transmit power between _____.

A. 3 W to 7 W

B. 1 W to 6 W

C. 2 W to 8 W

D. 0.1 W to 5 W

Question 207. ______ is a cellular telephone system popular in Europe.

A. AMPS

B. D-AMPS

C. GSM

D. IS-95

Question 208. When calculating the data rates for LMDS, capacity is the number of cell sites multiplied by which of the following?

A. The capacity per cell site

B. The number of cells

C. The number of sectors in the cell site

D. The sector capacity

Question 209. In cellular telephony, a service area is divided into small regions called ___.

A. Cells

B. Cell offices

C. MTSOs

D. Relay sites

Question 210. In a spread spectrum system, the tendency for a stronger signals to interfere with the reception of weaker signals.

A. near-far field

B. near-far effect

C. direct-sequence

D. spread-spectrum

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